Gold mineralization is hosted within a meta-sedimentary sequence dominated by banded (graphitic) quartzite and interbedded pelitic biotite schist that is cross-cut by numerous felsic to intermediate dikes and sills.

Source: https://investingnews.com/freegold-appoints-maurice-tagami-to-board-of-directors/

The cross-cut and G4 are situated at a 50 meters higher level with reference to G7, and connected via a raise.

Source: https://www.cbj.ca/leading-edge-materials-enlarges-extent-of-nickel-and-cobalt-in-historic-galleries-and-executes-trenches/